Population
Five year age groups
About this topic
Five year age groups show the population in standard five-year cohorts from early childhood through older age. Because each band covers the same span of years, the topic gives a clear and comparable view of an area's age structure.
This topic is useful for identifying growth or decline in specific cohorts and for comparing age patterns across places and over time. For service planning, it is often read together with service age groups, household types, and dwelling types.
Interpretation notes
- Age is reported as at Census night, so the counts are a snapshot of the resident age structure at that point in time.
- Because each band covers the same five-year span, this topic is best for exact cohort comparison rather than service-planning life stages.
Related topics
Key insight
In 2021, 55 to 59 year olds was the largest age group among residents in Parklands (WA), accounting for 10.1% (61 people). This share was higher than Mandurah (C) (6.6%). Since 2016, the biggest change was in 30 to 34 year olds, which decreased by 23 people and 4 percentage points.
Section overview
Age structure - Five year age groups
Parklands (WA) - Total persons (Usual residence)
This table summarises five year age groups for Parklands (WA) in 2021 for persons, with comparison against Mandurah (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Parklands (WA), with comparison markers for Mandurah (C).
0 to 4
2021 count
25
% of total
4.1%
Change from 2016
+1.7pp
25
4.1%
+1.7pp
5 to 9
2021 count
46
% of total
7.6%
Change from 2016
+0.4pp
46
7.6%
+0.4pp
10 to 14
2021 count
43
% of total
7.1%
Change from 2016
-0.5pp
43
7.1%
-0.5pp
15 to 19
2021 count
37
% of total
6.1%
Change from 2016
+0.2pp
37
6.1%
+0.2pp
20 to 24
2021 count
28
% of total
4.6%
Change from 2016
-1.6pp
28
4.6%
-1.6pp
25 to 29
2021 count
17
% of total
2.8%
Change from 2016
+0.9pp
17
2.8%
+0.9pp
30 to 34
2021 count
12
% of total
2.0%
Change from 2016
-4.0pp
12
2.0%
-4.0pp
35 to 39
2021 count
38
% of total
6.3%
Change from 2016
+2.2pp
38
6.3%
+2.2pp
40 to 44
2021 count
31
% of total
5.1%
Change from 2016
-2.1pp
31
5.1%
-2.1pp
45 to 49
2021 count
29
% of total
4.8%
Change from 2016
-1.7pp
29
4.8%
-1.7pp
50 to 54
2021 count
42
% of total
7.0%
Change from 2016
-3.7pp
42
7.0%
-3.7pp
55 to 59
2021 count
61
% of total
10.1%
Change from 2016
-0.7pp
61
10.1%
-0.7pp
60 to 64
2021 count
56
% of total
9.3%
Change from 2016
+1.2pp
56
9.3%
+1.2pp
65 to 69
2021 count
40
% of total
6.6%
Change from 2016
-1.0pp
40
6.6%
-1.0pp
70 to 74
2021 count
34
% of total
5.6%
Change from 2016
+1.3pp
34
5.6%
+1.3pp
75 to 79
2021 count
14
% of total
2.3%
Change from 2016
-0.1pp
14
2.3%
-0.1pp
80 to 84
2021 count
10
% of total
1.7%
Change from 2016
+0.7pp
10
1.7%
+0.7pp
85 and over
2021 count
6
% of total
1.0%
Change from 2016
+0.5pp
6
1.0%
+0.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+11
+1.7pp
5 to 9
+4
+0.4pp
10 to 14
-1
-0.5pp
15 to 19
+3
+0.2pp
20 to 24
-8
-1.6pp
25 to 29
+6
+0.9pp
30 to 34
-23
-4.0pp
35 to 39
+14
+2.2pp
40 to 44
-11
-2.1pp
45 to 49
-9
-1.7pp
50 to 54
-20
-3.7pp
55 to 59
-2
-0.7pp
60 to 64
+9
+1.2pp
65 to 69
-4
-1.0pp
70 to 74
+9
+1.3pp
75 to 79
0
-0.1pp
80 to 84
+4
+0.7pp
85 and over
+3
+0.5pp
Data table
Five year age groups for Parklands (WA). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mandurah (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mandurah (C)% | Count | % | Mandurah (C)% | Count | pp | |
| 0 to 4 | 25 | 4.1% | 5.3% | 14 | 2.4% | 5.8% | +11 | +1.7pp |
| 5 to 9 | 46 | 7.6% | 5.8% | 42 | 7.2% | 6.3% | +4 | +0.4pp |
| 10 to 14 | 43 | 7.1% | 6.3% | 44 | 7.6% | 5.9% | -1 | -0.5pp |
| 15 to 19 | 37 | 6.1% | 5.5% | 34 | 5.9% | 6.0% | +3 | +0.2pp |
| 20 to 24 | 28 | 4.6% | 5.0% | 36 | 6.2% | 5.4% | -8 | -1.6pp |
| 25 to 29 | 17 | 2.8% | 4.8% | 11 | 1.9% | 5.2% | +6 | +0.9pp |
| 30 to 34 | 12 | 2.0% | 5.4% | 35 | 6.0% | 5.7% | -23 | -4.0pp |
| 35 to 39 | 38 | 6.3% | 5.8% | 24 | 4.1% | 5.4% | +14 | +2.2pp |
| 40 to 44 | 31 | 5.1% | 5.3% | 42 | 7.2% | 6.1% | -11 | -2.1pp |
| 45 to 49 | 29 | 4.8% | 5.9% | 38 | 6.5% | 6.4% | -9 | -1.7pp |
| 50 to 54 | 42 | 7.0% | 6.2% | 62 | 10.7% | 6.5% | -20 | -3.7pp |
| 55 to 59 | 61 | 10.1% | 6.6% | 63 | 10.8% | 6.3% | -2 | -0.7pp |
| 60 to 64 | 56 | 9.3% | 6.7% | 47 | 8.1% | 6.4% | +9 | +1.2pp |
| 65 to 69 | 40 | 6.6% | 6.9% | 44 | 7.6% | 6.8% | -4 | -1.0pp |
| 70 to 74 | 34 | 5.6% | 6.9% | 25 | 4.3% | 5.7% | +9 | +1.3pp |
| 75 to 79 | 14 | 2.3% | 5.1% | 14 | 2.4% | 4.6% | 0 | -0.1pp |
| 80 to 84 | 10 | 1.7% | 3.6% | 6 | 1.0% | 3.0% | +4 | +0.7pp |
| 85 and over | 6 | 1.0% | 3.0% | 3 | 0.5% | 2.6% | +3 | +0.5pp |
| Total | 603 | 100.0% | 100.0% | 581 | 100.0% | 100.0% | +22 | 0.0pp |